/Engine/Plugins/Experimental/GeometryScripting/Source/GeometryScriptingCore/Public/GeometryScript/MeshPolygroupFunctions.h
Resets the triangle PolyGroup assignments within a PolyGroup Layer to the given Clear Value (or 0 if no Clear Value is specified). Note, this will have no effect if PolyGroups have not been enabled on the mesh, or if the requested Group Layer does not exist.
static [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * ClearPolygroups ( [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * TargetMesh, [FGeometryScriptGroupLayer](API\Plugins\GeometryScriptingCore\GeometryScript\FGeometryScriptGroupLayer) GroupLayer, int ClearValue, [UGeometryScriptDebug](API\Plugins\GeometryScriptingCore\GeometryScript\UGeometryScriptDebug) * Debug )